It doesn't matter. One of the wonderful things about law schools is they don't care what your major in, as long as you get good grade and don't major in something they consider "flaky". Don't get sold on a criminal justice degree, it is redundant and increases the chance you will burn out on the subject. Pick a subject you love to study, or pick a subject that you need to study for your "second choice" career if laws school doesn't work out.
Also, try to get a summer job as a secretary at a law office or something.